Home / 220,404.90-331,312.05-204,804.30

Finding the Fourth Proportional to 220,404.90, 331,312.05 and 204,804.30

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Solution

The fourth proportional to 220,404.90, 331,312.05 and 204,804.30 is: 307,861.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,404.90 : 331,312.05 = 204,804.30 : x
  2. Step 2: Convert to fraction form
    220,404.90/331,312.05 = 204,804.30/x
  3. Step 3: Cross multiply
    220,404.90x = 331,312.05 × 204,804.30
  4. Step 4: Simplify right side
    220,404.90x = 67,854,132,481.82
  5. Step 5: Solve for x
    x = 67,854,132,481.82/220,404.90
  6. Step 6: Final answer
    x = 307,861.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.